3v4l.org

run code in 300+ PHP versions simultaneously
<?php $namespaceConstant = "a\\b\\c\\d"; $b = strrpos($namespaceConstant, '\\'); $namespacePart = substr($namespaceConstant, 0, $b); $constantPart = substr($namespaceConstant, $b + 1); var_dump($namespacePart); var_dump($constantPart);

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.3.60.0030.01016.63
8.3.50.0150.00721.94
8.3.40.0070.00718.51
8.3.30.0110.00418.73
8.3.20.0050.00220.04
8.3.10.0070.00021.76
8.3.00.0080.00019.13
8.2.180.0070.00718.29
8.2.170.0070.01122.96
8.2.160.0070.00720.39
8.2.150.0040.00424.18
8.2.140.0080.00024.66
8.2.130.0070.00026.16
8.2.120.0000.00819.68
8.2.110.0030.00619.26
8.2.100.0040.00817.61
8.2.90.0090.00019.17
8.2.80.0030.00617.97
8.2.70.0040.00417.50
8.2.60.0000.00917.68
8.2.50.0030.00518.07
8.2.40.0030.00618.22
8.2.30.0040.00417.93
8.2.20.0040.00417.61
8.2.10.0000.00717.98
8.2.00.0040.00417.59
8.1.280.0070.00725.92
8.1.270.0030.00618.79
8.1.260.0110.00326.35
8.1.250.0050.00228.09
8.1.240.0060.00323.97
8.1.230.0080.00817.42
8.1.220.0000.00817.74
8.1.210.0080.00018.77
8.1.200.0030.00616.99
8.1.190.0040.00417.11
8.1.180.0080.00018.10
8.1.170.0040.00420.36
8.1.160.0000.00721.89
8.1.150.0000.00718.88
8.1.140.0000.00717.25
8.1.130.0060.00317.86
8.1.120.0040.00417.24
8.1.110.0000.00717.39
8.1.100.0000.00817.29
8.1.90.0070.00017.34
8.1.80.0040.00317.42
8.1.70.0000.00717.38
8.1.60.0000.00817.43
8.1.50.0030.00617.47
8.1.40.0000.00817.34
8.1.30.0000.00917.48
8.1.20.0000.00917.56
8.1.10.0040.00417.36
8.1.00.0050.00217.26
8.0.300.0080.00018.77
8.0.290.0000.00716.63
8.0.280.0070.00018.39
8.0.270.0070.00017.23
8.0.260.0030.00317.06
8.0.250.0030.00316.82
8.0.240.0030.00316.92
8.0.230.0040.00416.78
8.0.220.0000.00716.77
8.0.210.0000.00716.82
8.0.200.0000.00616.73
8.0.190.0000.00816.87
8.0.180.0000.00716.78
8.0.170.0000.00816.92
8.0.160.0000.00716.83
8.0.150.0030.00316.74
8.0.140.0040.00416.80
8.0.130.0030.00313.29
8.0.120.0050.00316.67
8.0.110.0030.00316.66
8.0.100.0040.00416.71
8.0.90.0070.00016.77
8.0.80.0120.00916.86
8.0.70.0050.00316.88
8.0.60.0000.00716.93
8.0.50.0000.00716.73
8.0.30.0060.00316.92
8.0.20.0110.01017.40
8.0.10.0090.00016.73
8.0.00.0060.01216.65
7.4.330.0000.00615.14
7.4.320.0070.00016.51
7.4.300.0000.00716.44
7.4.290.0000.00716.52
7.4.280.0030.00516.52
7.4.270.0000.00816.41
7.4.260.0030.00316.55
7.4.250.0070.00016.37
7.4.240.0030.00416.48
7.4.230.0000.00716.46
7.4.220.0120.00616.53
7.4.210.0150.00016.47
7.4.200.0040.00416.41
7.4.160.0080.00816.45
7.4.150.0160.00017.40
7.4.140.0120.01017.86
7.4.130.0090.00816.34
7.4.120.0030.01416.46
7.4.110.0000.01716.29
7.4.100.0160.00916.41
7.4.90.0110.01516.46
7.4.80.0030.01419.39
7.4.70.0110.00616.51
7.4.60.0120.00316.56
7.4.50.0000.00716.13
7.4.40.0160.00716.55
7.4.30.0040.01316.38
7.4.00.0030.01314.94
7.3.330.0000.00713.09
7.3.320.0080.00813.10
7.3.310.0000.00716.13
7.3.300.0030.00316.21
7.3.290.0070.01116.19
7.3.280.0100.00616.25
7.3.270.0230.02817.40
7.3.260.0160.00016.21
7.3.250.0080.00916.34
7.3.240.0060.01016.19
7.3.230.0070.01016.49
7.3.210.0070.01116.15
7.3.200.0100.01319.39
7.3.190.0070.00716.36
7.3.180.0090.00616.38
7.3.170.0110.00716.39
7.3.160.0090.00616.32
7.2.330.0130.01016.37
7.2.320.0060.01016.49
7.2.310.0090.00916.53
7.2.300.0060.01516.63
7.2.290.0120.00916.64
7.2.00.0030.01019.27
7.1.200.0000.01115.82
7.1.100.0100.00317.80
7.1.70.0050.00317.21
7.1.60.0110.01419.50
7.1.50.0070.01016.98
7.1.00.0070.07322.44
7.0.200.0040.00416.79
7.0.140.0070.07022.04
7.0.60.0130.07320.01
7.0.50.0100.05017.80
7.0.40.0030.04320.13
7.0.30.0300.07020.18
7.0.20.0300.03320.06
7.0.10.0170.08020.09
7.0.00.0070.07020.02
5.6.280.0030.07021.06
5.6.210.0070.08320.60
5.6.200.0070.08318.21
5.6.190.0170.04320.56
5.6.180.0070.08320.77
5.6.170.0230.04720.45
5.6.160.0070.04320.33
5.6.150.0100.08018.16
5.6.140.0100.06318.14
5.6.130.0100.07718.12
5.6.120.0070.04021.11
5.6.110.0100.08320.95
5.6.100.0130.05321.00
5.6.90.0000.04320.95
5.6.80.0000.09020.28
5.5.350.3970.03320.27
5.5.340.0100.05017.89
5.5.330.0070.04020.40
5.5.320.0230.04720.29
5.5.310.0370.06020.24
5.5.300.0000.05317.89
5.5.290.0130.08018.02
5.5.280.0030.08720.79
5.5.270.0130.08020.89
5.5.260.0130.07320.67
5.5.250.0130.08020.60
5.5.240.0230.07020.31
5.4.450.4300.04019.27
5.4.440.0070.03719.26
5.4.430.0130.04319.36
5.4.420.2200.05019.50
5.4.410.0070.03719.33
5.4.400.3270.04019.04
5.4.390.4670.03719.04
5.4.380.3900.03719.15
5.4.370.4300.05319.14
5.4.360.4200.03319.10
5.4.350.4100.03719.05
5.4.340.4600.03719.10
5.4.320.4270.03719.03
5.4.310.3530.03719.15
5.4.300.3930.03719.13
5.4.290.3870.03719.04
5.4.280.3730.04019.14
5.4.270.4500.04318.87
5.4.260.4370.03718.86
5.4.250.5270.02019.12
5.4.240.4070.04019.09
5.4.230.4030.03319.14
5.4.220.5000.03319.12
5.4.210.4100.04019.12
5.4.200.3670.03319.23
5.4.190.4070.04319.11
5.4.180.4030.03719.13
5.4.170.3830.03719.17
5.4.160.4330.03019.02
5.4.150.4170.04319.09
5.4.140.3870.04316.22
5.4.130.3970.03716.43
5.4.120.4230.03316.16
5.4.110.4070.03016.40
5.4.100.4430.02716.42
5.4.90.3970.03716.51
5.4.80.4630.03716.44
5.4.70.4030.03316.37
5.4.60.3700.03716.33
5.4.50.3900.03316.36
5.4.40.3530.03316.46
5.4.30.3800.04016.21
5.4.20.3400.03716.29
5.4.10.3830.03316.11
5.4.00.3370.04715.77
5.3.290.3700.04314.59
5.3.280.4100.03014.54
5.3.270.3700.03714.52
5.3.260.4270.02714.69
5.3.250.3370.02714.53
5.3.240.2600.04014.54
5.3.230.3700.04014.52
5.3.220.3770.03314.35
5.3.210.3800.04014.46
5.3.200.4770.03314.35
5.3.190.3970.03014.49
5.3.180.4530.02714.48
5.3.170.3370.03714.48
5.3.160.4400.02314.48
5.3.150.3630.03714.34
5.3.140.4170.04314.57
5.3.130.3100.04014.47
5.3.120.3730.04314.48
5.3.110.4200.03314.47
5.3.100.4000.03713.94
5.3.90.4230.04013.94
5.3.80.3770.03713.97
5.3.70.3530.03713.85
5.3.60.3670.04013.79
5.3.50.3800.03713.89
5.3.40.3770.04313.91
5.3.30.2200.03713.85
5.3.20.3470.02713.62
5.3.10.2830.03713.62
5.3.00.3870.05013.57
5.2.170.3230.03011.30
5.2.160.3330.03011.15
5.2.150.2930.03711.13
5.2.140.1130.03011.12
5.2.130.2700.03011.18
5.2.120.2300.02011.03
5.2.110.2630.02310.95
5.2.100.2000.02311.05
5.2.90.2570.03011.00
5.2.80.2400.02711.08
5.2.70.2070.03010.91
5.2.60.2670.02710.97
5.2.50.0730.03711.02
5.2.40.0030.03010.89
5.2.30.0000.03010.93
5.2.20.0070.02310.94
5.2.10.1670.03310.91
5.2.00.1400.02310.71
5.1.60.1470.0239.98
5.1.50.1770.02710.01
5.1.40.1270.0209.97
5.1.30.2830.02710.33
5.1.20.2770.03310.35
5.1.10.2030.0279.96
5.1.00.1970.02310.13
5.0.50.1300.0208.60
5.0.40.1270.0178.24
5.0.30.1370.0338.24
5.0.20.1570.0178.18
5.0.10.1130.0178.20
5.0.00.1630.0338.30
4.4.90.1170.0135.82
4.4.80.0670.0205.81
4.4.70.0000.0205.78
4.4.60.0000.0175.86
4.4.50.0000.0205.80
4.4.40.1070.0205.80
4.4.30.1100.0135.79
4.4.20.1430.0205.95
4.4.10.1600.0205.89
4.4.00.0070.0375.84
4.3.110.1300.0175.72
4.3.100.1330.0175.71
4.3.90.0870.0175.79
4.3.80.1800.0235.76
4.3.70.1430.0205.71
4.3.60.1530.0135.79
4.3.50.1500.0175.67
4.3.40.1530.0275.76
4.3.30.1000.0204.93
4.3.20.0800.0174.93
4.3.10.1030.0174.93
4.3.00.0630.0274.93

preferences:
43.13 ms | 401 KiB | 5 Q